AngleTool.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using static CommunicationEvents;

public class AngleTool : Gadget
{

    //Variables for AngleMode distinction
    private bool angleModeIsFirstPointSelected = false;
    private PointFact angleModeFirstPointSelected = null;
    private bool angleModeIsSecondPointSelected = false;
    private PointFact angleModeSecondPointSelected = null;

    //Attributes for simulating the drawing of a curve
    private bool curveDrawingActivated;
    public WorldCursor Cursor;
    public LineRenderer lineRenderer;
    private List<Vector3> linePositions = new List<Vector3>();
    public Material anglePreviewMaterial;

    //Vertices for the Curve
    private int curveDrawingVertexCount = 36;
    private Vector3 curveEndPoint;
    private Vector3 angleMiddlePoint;
    private float curveRadius;

    void Awake()
    {
        if (FactManager == null)
            FactManager = GameObject.FindObjectOfType<FactManager>();

        if (this.Cursor == null)
            this.Cursor = GameObject.FindObjectOfType<WorldCursor>();

        this.UiName = "Angle Mode";
        CommunicationEvents.TriggerEvent.AddListener(OnHit);
    }

    //Initialize Gadget when enabled AND activated
    void OnEnable()
    {
        this.Cursor.setLayerMask(~this.ignoreLayerMask.value);
        this.ResetGadget();
    }

    public override void OnHit(RaycastHit hit)
    {
        if (!this.isActiveAndEnabled) return;
        if (hit.transform.gameObject.layer == LayerMask.NameToLayer("Point"))
        {
            PointFact tempFact = (PointFact)LevelFacts[hit.transform.GetComponent<FactObject>().URI];

            //If two points were already selected and now the third point got selected
            if (this.angleModeIsFirstPointSelected && this.angleModeIsSecondPointSelected)
            {
                //Create AngleFact
                //Check if new Point is equal to one of the previous points -> if true -> cancel
                if (!(this.angleModeFirstPointSelected.URI == tempFact.URI || this.angleModeSecondPointSelected.URI == tempFact.URI))
                {
                    FactManager.AddAngleFact(((PointFact)this.angleModeFirstPointSelected).URI, ((PointFact)this.angleModeSecondPointSelected).URI, ((PointFact)tempFact).URI);
                }

                ResetGadget();
            }
            //If only one point was already selected
            else if (this.angleModeIsFirstPointSelected && !this.angleModeIsSecondPointSelected)
            {
                //Check if the 2 selected points are the same: If not
                if (this.angleModeFirstPointSelected.URI != tempFact.URI)